/***************************************************************************
 *   Copyright (c) 2005 Imetric 3D GmbH                                    *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  is distributed in the hope that it will be useful,      *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#ifndef BASE_SWAP_H
#define BASE_SWAP_H

#define LOW_ENDIAN (unsigned short)0x4949
#define HIGH_ENDIAN (unsigned short)0x4D4D


namespace Base
{

/**
 * \brief Definition of functions that allow swapping of data types
 * dependent on the architecture.
 */

/** Returns machine type (low endian, high endian) */
unsigned short SwapOrder();

void SwapVar(char&);
void SwapVar(unsigned char&);
void SwapVar(short&);
void SwapVar(unsigned short&);
void SwapVar(long&);
void SwapVar(unsigned long&);
void SwapVar(float&);
void SwapVar(double&);

template<class T>
void SwapEndian(T& v)
{
    T tmp = v;
    int i = 0;

    for (i = 0; i < (int)sizeof(T); i++) {
        *(((char*)&tmp) + i) = *(((char*)&v) + sizeof(T) - i - 1);
    }
    v = tmp;
}

}  // namespace Base


#endif  // BASE_SWAP_H
